Radare2 up to 5.5.1/5.5.3/5.5.x/5.6.1 resource consumption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Radare2 up to 5.5.1/5.5.3/5.5.x/5.6.1. This issue affects some unknown processing. The manipulation leads to resource consumption. This vulnerability is traded as CVE-2021-4021. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Radare2 up to 5.5.1/5.5.3/5.5.x/5.6.1 (Programming Tool Software). It has been rated as problematic. This issue affects some unknown functionality. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was shared 02/25/2022 as 19436. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-4021 since 11/25/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 5.5.2, 5.5.4, 5.6.0 or 5.6.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Radare2 5.5.2/5.5.4/5.6.0/5.6.2

Timelineinfo

11/25/2021 🔍
02/25/2022 +92 days 🔍
02/25/2022 +0 days 🔍
02/26/2022 +1 days 🔍

Sourcesinfo

Advisory: 19436
Status: Confirmed

CVE: CVE-2021-4021 (🔍)
GCVE (CVE): GCVE-0-2021-4021
GCVE (VulDB): GCVE-100-193769

Entryinfo

Created: 02/25/2022 11:49
Updated: 02/26/2022 16:04
Changes: 02/25/2022 11:49 (39), 02/26/2022 16:04 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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